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Physics 2005 NECO Past Questions

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31
Which of the following statements is correct?
  • A. Alpha particles have a large mass and high penetrating power
  • B. Alpha particles have a small mass and a low penetrating power
  • C. Beta partials have no mass and a high penetrating power
  • D. Beta particles have a large mass and a low penetrating power
  • E. Gamma rays have no mass and a high penetrating power
View Answer & Discuss NECO 2005
32
Which of the following will reduce the frequency of oscillation of a simple pendulum?
  • A. Decreasing the length of the string
  • B. Increasing the amplitude of oscillation
  • C. Increasing the length of the string
  • D. Increasing the mass of the bob
  • E. Reducing the mass of the bob.
View Answer & Discuss (2) NECO 2005
33
A box is pulled a distance s along a smooth horizontal floor by a force of magnitude F, inclined at an angle θ to the horizontal. The work done is
  • A. Fs cos θ
  • B. Fs cosec θ
  • C. Fs sec θ
  • D. Fs sin θ
  • E. Fs tan θ
View Answer & Discuss (4) NECO 2005
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34

A radio station broadcasts at a frequency of 400 kHz. If the speed of the wave is 3.0 ×10\(^{-8}\)ms\(^{-1}\), calculate the wavelength of the radio wave.

  • A. 1.3 × 102m
  • B. 3.0 × 102m
  • C. 2.4 × 102m
  • D. 5.0 × 102m
  • E. 7.5 × 10-14m
View Answer & Discuss (4) NECO 2005
35
Which of the following is/are longitudinal wave(s)?

I. Light waves from the sun
II. Sound waves in the air
III. Waves on a vibrating string
  • A. I only
  • B. II only
  • C. I and II only
  • D. I and III only
  • E. II and III only
View Answer & Discuss (1) NECO 2005
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